{"id":98802,"date":"2020-12-25T02:42:12","date_gmt":"2020-12-25T00:42:12","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadre-versii-5-10-obnaruzhena-regressiya-proizvoditelnosti-btrfs"},"modified":"2020-12-25T02:42:12","modified_gmt":"2020-12-25T00:42:12","slug":"v-yadre-versii-5-10-obnaruzhena-regressiya-proizvoditelnosti-btrfs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/v-yadre-versii-5-10-obnaruzhena-regressiya-proizvoditelnosti-btrfs","title":{"rendered":"Im Kernel der Version 5.10 wurde eine Performance-Regressions bei BtrFS festgestellt.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ein Reddit-Nutzer berichtete von einer Verlangsamung der Ein- und Ausgabeoperationen auf seinem System mit btrfs, nach dem Update des Kernels auf Version 5.10.<\/p>\n

\n

Ich fand einen sehr einfachen Weg, um die Regression zu reproduzieren, n\u00e4mlich das Entpacken eines riesigen Tarballs, z.B.: tar xf firefox-84.0.source.tar.zst. Auf meinem externen USB3-SSD mit Ryzen 5950x dauerte dies statt etwa 15 Sekunden mit Kernel 5.9 fast 5 Minuten in 5.10! Um die Fragmentierung des Dateisystems auszuschlie\u00dfen, testete ich au\u00dferdem ein v\u00f6llig neues, zuvor ungenutztes 1 TB PCIe 4.0 SSD, mit einer \u00e4hnlichen, wenn auch nicht so schockierenden Regression von 5.2s auf kolossale ~34 Sekunden oder ~650% in 5.10 :-\/.<\/p>\n<\/blockquote>\n

<\/p>\n

Es scheint verbunden zu sein mit j\u00fcngsten Aktivit\u00e4ten<\/a> im btrfs-Treiber.<\/p>\n

<\/noindex><\/noindex>
\n<\/p>\n

Nachricht<\/a> \u00fcber die Regression in der linux-btrfs-Mailingliste.<\/p>\n

<\/noindex><\/p>\n

Quelle: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0440\u0435\u0434\u0434\u0438\u0442\u0430 \u0441\u043e\u043e\u0431\u0449\u0438\u043b \u043e \u0437\u0430\u043c\u0435\u0434\u043b\u0435\u043d\u0438\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0432\u0432\u043e\u0434\u0430-\u0432\u044b\u0432\u043e\u0434\u0430 \u043d\u0430 \u0435\u0433\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0441 btrfs, \u043f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u044f\u0434\u0440\u0430 \u0434\u043e \u0432\u0435\u0440\u0441\u0438\u0438 5.10. \u042f \u043d\u0430\u0448\u0435\u043b \u043e\u0447\u0435\u043d\u044c \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0432\u043e\u0441\u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0441\u0442\u0438 \u0440\u0435\u0433\u0440\u0435\u0441\u0441\u0438\u044e, \u0430 \u0438\u043c\u0435\u043d\u043d\u043e \u0438\u0437\u0432\u043b\u0435\u0447\u0435\u043d\u0438\u0435 \u043e\u0433\u0440\u043e\u043c\u043d\u043e\u0433\u043e \u0442\u0430\u0440\u0431\u043e\u043b\u0430, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440: tar xf firefox-84.0.source.tar.zst. \u041d\u0430 \u043c\u043e\u0435\u043c \u0432\u043d\u0435\u0448\u043d\u0435\u043c, USB3 SSD \u043d\u0430 Ryzen 5950x \u044d\u0442\u043e \u0437\u0430\u043d\u044f\u043b\u043e \u0432\u043c\u0435\u0441\u0442\u043e ~15s \u043d\u0430 \u044f\u0434\u0440\u0435 5.9, \u0434\u043e \u043f\u043e\u0447\u0442\u0438 5 \u043c\u0438\u043d\u0443\u0442 \u0432 5.10! […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-98802","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Regression der BtrFS-Leistung im Kernel der Version 5.10 entdeckt | ProHoster","description":"Ein Reddit-Nutzer berichtete von einer Verlangsamung der Ein- und Ausgabeoperationen auf seinem System mit btrfs, nach dem Update des Kernels auf Version 5.10. Ich fand einen sehr einfachen Weg, um die Regression zu reproduzieren, n\u00e4mlich das Entpacken eines riesigen Tarballs, z.B.: tar xf firefox-84.0.source.tar.zst. Auf meinem externen USB3-SSD mit Ryzen 5950x dauerte dies statt etwa 15 Sekunden mit Kernel 5.9 fast 5 Minuten in 5.10.","canonical_url":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/v-yadre-versii-5-10-obnaruzhena-regressiya-proizvoditelnosti-btrfs","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"de_DE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412 \u044f\u0434\u0440\u0435 \u0432\u0435\u0440\u0441\u0438\u0438 5.10 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0430 \u0440\u0435\u0433\u0440\u0435\u0441\u0441\u0438\u044f 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\u0440\u0435\u0433\u0440\u0435\u0441\u0441\u0438\u044e, \u0430 \u0438\u043c\u0435\u043d\u043d\u043e \u0438\u0437\u0432\u043b\u0435\u0447\u0435\u043d\u0438\u0435 \u043e\u0433\u0440\u043e\u043c\u043d\u043e\u0433\u043e \u0442\u0430\u0440\u0431\u043e\u043b\u0430, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440: tar xf firefox-84.0.source.tar.zst. \u041d\u0430 \u043c\u043e\u0435\u043c \u0432\u043d\u0435\u0448\u043d\u0435\u043c, USB3 SSD \u043d\u0430 Ryzen 5950x \u044d\u0442\u043e \u0437\u0430\u043d\u044f\u043b\u043e \u0432\u043c\u0435\u0441\u0442\u043e ~15s \u043d\u0430 \u044f\u0434\u0440\u0435 5.9, \u0434\u043e \u043f\u043e\u0447\u0442\u0438 5 \u043c\u0438\u043d\u0443\u0442 \u0432 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